Todd suggests:
>>>It kinda breaks the mold of "filter", but have you considered setting up
a
sand and live substrate filter?<<<
Thanks. I use sponge filters a lot, including one in my tank of smaller
gar, but I do not think it would work with the larger fish (> 600 mm TL).
They leave a lot of chunky waste. Also, I wonder if they might get their
teeth caught if they struck at a fish that was hiding near the filter. The
"live sand" idea appeals to me the more I think about it.
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